cofounder

American  

[koh-foun-der] / koʊˈfaʊn dər /

Or co-founder

noun

1. a person who founds or establishes something with another.

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Etymology

Origin of cofounder

First recorded in 1595–1605; co- + founder ¹

Example Sentences

Andrew Salter, cofounder of mushroom drinks brand Dirtea, says lion's mane in particular has a subtle taste, and I found there was next to no difference between my functional coffee and the regular one.

From BBC

According to Koko cofounder Rob Morris, the bot helped volunteers write the messages far more quickly than if they had had to compose them themselves.

From Scientific American

Desi's rise — musician turned bandleader turned actor turned cofounder of a production company with a hit TV show costarring him — was objectively impressive, but for the senior Arnazes it wasn't enough.

From Salon

“There’s lots of really interesting avenues for behavioral science application that have arisen because of because of the pandemic,” said Mary MacLennan, the cofounder of the United Nations Behavioral Science Group.

From Reuters

I'm also one of the cofounders of Documentary Producer Alliance.

From Salon